Unable to output public_dns/public_ip value when requesting spot instances

[vithursant]

Adding the snippet below to the outputs.tf file:

output "public-dns" {
  value = ["${aws_spot_instance_request.aws_dl_custom_spot.*.public_dns}"]
}


output "ssh-cmd" {
  value = ["${format("ssh -i %s%s.pem ubuntu@%s", var.ssh-key-dir,
    aws_spot_instance_request.aws_dl_custom_spot.*.key_name,
    aws_spot_instance_request.aws_dl_custom_spot.*.public_dns)}"]
}

Results in the following error when executing the command terraform apply:

* output.public-ip: Resource 'aws_spot_instance_request.aws_dl_custom_spot' does not have attribute 'public_dns' for variable 'aws_spot_instance_request.aws_dl_custom_spot.*.public_dns'
* output.ssh-cmd: Resource 'aws_spot_instance_request.aws_dl_custom_spot' does not have attribute 'public_dns' for variable

This issue is linked to hashicorp/terraform-provider-aws#4313.

[dennisobrien]

I had the same issue. I added wait_for_fulfillment = true to the resource "aws_spot_instance_request" "aws_dl_custom_spot" section and it seems to have fixed it. Can you try adding that and let us know if it fixed it for you?

[dennisobrien]

By the way -- thanks for this working example project! It saved me a lot of time.

[vithursant]

No problem @dennisobrien I will close this issue now.